Constructor injection is particularly concise in Kotlin:

```
class MyTest(
  private val server: MockWebServer
) {
  @Test
  fun test() {
    ...
  }
}
```

Multiple instances can be obtained by naming additional ones:

```
class MyTest(
  private val server: MockWebServer,
  @MockWebServerInstance("server2") private val server2: MockWebServer,
  @MockWebServerInstance("server3") private val server3: MockWebServer

import java.net.CookieHandler

/**
 * A cookie jar that delegates to a [java.net.CookieHandler].
 *
 * This implementation delegates everything to [okhttp3.java.net.cookiejar.JavaNetCookieJar], which
 * conforms to the package-naming limitations of JPMS.
 *
 * Callers should prefer to use [okhttp3.java.net.cookiejar.JavaNetCookieJar] directly.
 */
class JavaNetCookieJar private constructor(
  delegate: okhttp3.java.net.cookiejar.JavaNetCookieJar,

import okhttp3.survey.types.Client
import okhttp3.survey.types.SuiteId
import okio.FileSystem
import okio.Path.Companion.toPath
import org.conscrypt.Conscrypt

@Suppress("ktlint:standard:property-naming")
suspend fun main() {
  val includeConscrypt = false

  val client =
    OkHttpClient.Builder()
      .cache(Cache(FileSystem.SYSTEM, "build/okhttp_cache".toPath(), 100_000_000))
      .build()

com.vu
edu.vu
net.vu
org.vu

// wf : http://www.afnic.fr/medias/documents/AFNIC-naming-policy2012.pdf
wf

// ws : https://en.wikipedia.org/wiki/.ws
// http://samoanic.ws/index.dhtml
ws
com.ws
net.ws
org.ws
gov.ws
edu.ws

// yt : http://www.afnic.fr/medias/documents/AFNIC-naming-policy2012.pdf
yt

// IDN ccTLDs

resistance.museum rest restaurant restaurant.bj resto.bj review reviews revista.bo rexroth rg.it rhcloud.com ri.it ri.us ribeirao.br ric.jelastic.vps-host.net rich richardli ricoh rieti.it rifu.miyagi.jp riik.ee rikubetsu.hokkaido.jp rikuzentakata.iwate.jp ril rimini.it rindal.no ringebu.no ringerike.no ringsaker.no rio rio.br riobranco.br riodejaneiro.museum riopreto.br rip rishiri.hokkaido.jp rishirifuji.hokkaido.jp risor.no rissa.no risør.no ritto.shiga.jp rivne.ua rj.gov.br rj.leg.br rl.no rm.it rn.gov.br...

### [URLs](https://square.github.io/okhttp/4.x/okhttp/okhttp3/-http-url/)

URLs (like `https://github.com/square/okhttp`) are fundamental to HTTP and the Internet. In addition to being a universal, decentralized naming scheme for everything on the web, they also specify how to access web resources.

URLs are abstract:

import assertk.assertThat
import assertk.assertions.isEqualTo
import java.net.Inet4Address
import java.net.Inet6Address
import org.junit.jupiter.api.Test

@Suppress("ktlint:standard:property-naming")
class InetAddressOrderTest {
  val ipv4_10_0_0_6 = Inet4Address.getByName("10.0.0.6")
  val ipv4_10_0_0_1 = Inet4Address.getByName("10.0.0.1")
  val ipv4_10_0_0_4 = Inet4Address.getByName("10.0.0.4")